Demountable rim.



H. McCLURE.

DEMOUNTABLE RIM.

APPLICATION FILED MAR. I. 1915.

Patented July 23, IBIS.

2 SHEETS-SHEET I n. McCLURE. DEMOUNTAELE RIM.

I APflucmou mzo MAN. l. 1916 1,273,640.

2 SHEETS--SHEET 2.

Patented July 23, 1918.

UNITED STATES PATENT OFFICE.

RODERICK MGCLURE, OF GILMAN, MONTANA. ASSIGNOR TO HARRY GLEN BARNES. OT GILMAN. MONTANA.

DEMOUNTABLE RIM.

Application filed March 1, 1916.

To 11/], :c/zom it may concern:

Be it known that I, Romcmt'lc MoCLulma citizen oi the United States, residing at Gilman. In the county of Lewis and Clark and State of Montana. have invented certain new and useful improvements in Demonntable llin1s,of which the following is a specilication.

This invention relates to new and useful inmrovements in demountahle rims for ant0- mobile wheels and particularly to the type wherein the permanent rim on the telly of the wheel and the demountablc riln are pro vided with interlocking means which are adapted for engagement for operating the demountable rim circalnferentialIv ot the permanent rim, and the primary object of the invention is to provide an improved rim of this character which may be quickly and readilyremoved or adjusted to the wheel when desired.

A further object of the invention resides in providing an improved wedge. construction for cooperation between the permanent rim and the demountable rim. and a still further object resides in providing an additional locking means to prevent lateral movement of the demountable rim with re spect to the perman'ent rim and also to prevent a casual disengagement. of the aforesaid lockii g wedge construction.

A further object of the ilwention resides in providing a rim which is simple and durable in construction. inexpensive to manufacture and one which will be very efiicient in use.

iVith these and other objects in view, my

invention consists in the. novel featuresof construction, combination anli arrangement of parts, as will be herematter referred to and more particularly pointed out in the specification and claim. I

In the accompanying drawings, forming a part of this application Figure 1 is a fragmentary side elevation of a wheel witha rim thereon, constructed in accordance with my invention;

Fig. 2 is a transverse section as seen on the line 2-2 of Fig. 1;

Fig. 3 is a vertical section as seen on. the line 3-3 of Fig. 55, the eyenut being removed;

Fig. 4 is a fragmentary detailed side elevation showing the means for removing or adjusting the rim in osition;

Fig. 5 is a detai ed perspective view,

Specification of Letters Patent.

atentcd July 21;, .918.

Serial No. 81.408.

partly in section showing the wedge coir struction bet ween the permanent and demountable rims, parts being nil-assembled;

Fig. (3 is a perspective view part ly in see tion with the parts assembled and disclosing the wedge construction;

Fig. 7 is a detailed perspective view of a slightly modified form of wedge construc- (ion;

Fig. 8 is a perspective view, partly in section. of a further modilication oi the inven tion; and

Fig. 9 is a perspective view of a permas ncnt rim and demounta le riln un-aseemhled, disclosing the modified form illustrated in Fig. s.

In describing the invention. I shall rel'er to the drawings in which similar reference characters designate correqmnding parts throughout the several views and in whi h 1 designates a wheel of the usual or any preferred type used in connection with automobiles or other vehicles, the same being provided with a telly .2 to which is secured. the permanent rim 3. This rim. for the pur poses ot my invention, is preferahlv; pro vided with an upstanding integral llange l along one side edge thereof. as clearl shown in Fig. 2 ol the drawing. Adapted to he applied to the rim It is the denuuinta le rim 5 to which may be secured in any approval manner, a tire 6.

My invention primarily contemplates the provision of an interlocking means between the demountable and permanent rims which are adapted for their ell'ective engagement by the circumferential movement of the demountable rim on the permanent rim. To this end the inner face of the demountable rim 5 is provided at predetermined points thereon with integral wedge like projections 7 and the outer face of the permanent rim 3 is correspondingly provided at. predeterpiined points thereon with similar integral wedge-like )I'Ojfltitllls 8 and when these interlocking wedge-like members 7 and 8 are brought into engagement with one another by eircumt'erential movement. of the demountable rim, it. is obvious that said demountable rim will be securely held in position on the wheel. in the preferred form of the invention. as disclosed in Figs. 5 and 6 of the. t'lrawings. the outer face of the wedge-like member 7 is disclosed convex and. the face of the wedge-like member 8 is shown COllCtWCtl. This construction obviously assists in the effective engagement of the wedges.

In order to prevent casual disengagement of the Wedges after the same have beeninterlocked, I provide an additional locking structure for the same. The same consists of a serrated plate 9 secured to the inner iace of the rim 5 and a movable block 10 also having a serrated face for engagement with the plate 9. This block 10 is carried by the folly 2 and is adapted to project through an o ening 11 in the rim 3. This block is cape 1e of lateral movement in the folly and is held normally outward in engagement with the serrated plate 9 through the medium of a coil spring 12 which encircles a stem 13, carried by the block 10. This stem projects through the telly 2 and is threaded at its outer end shown at 1% whereby to he engaged by an eye-nut or the like 15. It is obvious that the coil spring 12 tends to nor mally position the block 10 outwardly in its engaging position with the serrated plate 9, whereby to positively secure the demount able-rim in position, but when it is desired to remove said rim from the ,wheel, the nut 15 may be turned home. whereby to retract the block 10 and disengage the serrated faces.

The demountable rim may then be readily disengaged by circumferential move ment in the opposite direction.

I have also provided means, whereby to give a circiunferential movement to the de mountable rim for the purpose of applying or removing said demountable rim. To this end the demountable rim 5 at a predetermlned point on its inner face is provided with a plurality of teeth of the like 16 and the rim 3 at the same point is provided with an opening 17. A tire tool or other member 18 maybe introduced through the opening 17 to engage the teeth 16 and it is obvious from this construction that the denwuntalilc *rim may be moved in either direction to pUSl tively engage the wedges or disconnect the name, as may be desired.

As stated previously, the rim 3 is provided along its one edge with an upstanding flange 4:, the peripheral upper edge of which contacts with the end face of the demountable rim 5 as clearly shown in Fig. 2 of the drawings. :isprowded with a depending flange 4 which is adapted to contact with the opposite pe- The opposite edge of the rim 5 ripheral edger-if the rim 3, as shown in Flg. 2 of the drawings. Thus this flange 4" con taots with the edge of the rim 3 and forms a stop for lateral movement of the demou nt- {able rim with respect to the permanent rnn. Furthermore, these flanges 4 and 4* act as covering flanges for the openings between the two rims and thus mud, dirt and other extraneous matter is prevented from entering therebetween.

In Fi 7 I have shown a slightly modified form n the invention wherein a rim 19 is provided with a wedge 20, the face of the wedge being serrated howo at '21. I have only shown the one run so liPllb-tlllUtQll, but it is obvious that the own-ring rim will be similarly (UHF-l Furled.

In Fig. ti and l? l have shown a further modilivd lorm oi' lhr invention wherein a permanent rim 31 is providrd at predetermined points thcrron with substantially V shaped logs or projections 23. These lugs or projections 2;; are formed preferably by tip-setting the rim. A demountable rim 2.4L- is provided and has formed integral with its under 'l'ace similarly designed V-shaped pro j tioo or lugs .53: which are designed for intor-locking engagement with the projections 23. Otherwise this mmlilied form the same as the pielerrml form of ihe invention and it is (riJllUilrs from th: nonstruction that the rims may be readily i ijl'lul'lflid by permitting the lugs 33 and ti :o be brought in irictiooni vents will: rim anoth r.

From the foreglomg description oi the construction of my improved device, the manneroi applying the same to use and. the operation thereof will be readily emderstood and it \viii be seen that l have provided a simple. inenpensi and eiiirient means for carrying out the ob hi the ii'wention.

While I have particularly described the elements best adapted to perform the funetions set forth. it is obvious that various changes in the forim proportion and in the minor detaile of construction may be resorted to, Without departing from the spirit or sacrificing any of the principles of the in vention. i

What Ihlai i. and desire to stature by Letters Paten t, is

The combination with a permanent rim having an opening. and a dcmountable rim having a serrated plate on its inner side, of a locking device onipriaing a serrated block seated in the opening and engaging said plate, a. stem on the block and a spring coiled about the stem to hold the block in engagement, and said stem having a threaded end toreceive not for wittnlrawinn' the block to inoperative. position against the tension of the spring, said fixed rim and demountable :rims having elements that are engaged by It is hereby, certified that Letters Patent No. 1,273,640, granted July 23, 1918, upon the application of Roderick McClure, of Gilinan, Montana, for an improvement in U emountabie Rims, were erroneously issued to Harry Glen Barnes, as owner of the entire interest in said invention, whereas said Letters Patent should have been issued to the inventor, said McClure and Harry Glen Barnes, jointly, said Barnes being owner of one-half interest, only, as shown by the records of assignments in this oflice; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Ofiice.

Signed and sealed this 27th day of August, A: D., 1918.

[SEAL] F. W. H. CLAY,

A ct'ing Commissioner of Patents. Cl l 5 2 2 1 

